This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: A coal-fired plant generates 600 MW of electric power. The plant uses 4.8 106 kg of coal each day. ... (Read 154 times)

dakota nelson

  • Hero Member
  • *****
  • Posts: 604
on: Jul 27, 2018
A coal-fired plant generates 600 MW of electric power. The plant uses 4.8  106 kg of coal each day. The heat of combustion of coal is 3.3  107 J/kg.
 
  The steam that drives the turbines is at a temperature of 300C, and the exhaust water is at 37C.
  (a) What is the overall efficiency of the plant for generating electric power?
  (b) What is the Carnot efficiency?

Question 2

How many moles are there in 2.0 kg of copper? (The atomic weight of copper is 63.5 and its specific gravity is 8.9.)
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

whitcassie

  • Sr. Member
  • ****
  • Posts: 298
Reply #1 on: Jul 27, 2018
Answer to Question 1

(a) 33
(b) 46

Answer to Question 2

32. moles


dakota nelson

  • Hero Member
  • *****
  • Posts: 604
Reply #2 on: Jul 27, 2018
Both answers were spot on, thank you once again


whitcassie

  • Sr. Member
  • ****
  • Posts: 298
Reply #3 on: Jul 27, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.

Did you know?

The most common childhood diseases include croup, chickenpox, ear infections, flu, pneumonia, ringworm, respiratory syncytial virus, scabies, head lice, and asthma.

Did you know?

When taking monoamine oxidase inhibitors, people should avoid a variety of foods, which include alcoholic beverages, bean curd, broad (fava) bean pods, cheese, fish, ginseng, protein extracts, meat, sauerkraut, shrimp paste, soups, and yeast.

Did you know?

As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.

Did you know?

Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.

Mutualistic associations between fungi and plant roots: (a) arbuscular mycorrhizal fungus stained so Mutualistic associations between fungi and plant roots: (a) arbuscular mycorrhizal fungus stained so
Electric and butane-powered soldering guns used to make electrical repairs. Soldering guns are sold ... Electric and butane-powered soldering guns used to make electrical repairs. Soldering guns are sold ...
Tag identify that the power has been removed and service work is being done. Tag identify that the power has been removed and service work is being done.
Plant Cell Plant Cell
Wheat Plant Wheat Plant
Plant life cycle Plant life cycle
Video: DNA close up Animation

For a complete list of videos, visit our video library